/*
 * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.engine.impl.cmd;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.ActivitiIllegalArgumentException;
import org.activiti.engine.impl.event.MessageEventHandler;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.entity.EventSubscriptionEntity;
import org.activiti.engine.impl.persistence.entity.EventSubscriptionEntityManager;
import org.activiti.engine.impl.persistence.entity.ExecutionEntity;

/**


 */
public class MessageEventReceivedCmd extends NeedsActiveExecutionCmd<Void> {

    private static final long serialVersionUID = 1L;

    protected final Map<String, Object> payload;
    protected final String messageName;
    protected final boolean async;

    public MessageEventReceivedCmd(String messageName, String executionId, Map<String, Object> processVariables) {
        super(executionId);
        this.messageName = messageName;

        if (processVariables != null) {
            this.payload = new HashMap<String, Object>(processVariables);
        } else {
            this.payload = null;
        }
        this.async = false;
    }

    public MessageEventReceivedCmd(String messageName, String executionId, boolean async) {
        super(executionId);
        this.messageName = messageName;
        this.payload = null;
        this.async = async;
    }

    protected Void execute(CommandContext commandContext, ExecutionEntity execution) {
        if (messageName == null) {
            throw new ActivitiIllegalArgumentException("messageName cannot be null");
        }

        executeInternal(commandContext, execution);
        return null;
    }

    protected void executeInternal(CommandContext commandContext, ExecutionEntity execution) {
        EventSubscriptionEntityManager eventSubscriptionEntityManager =
            commandContext.getEventSubscriptionEntityManager();
        List<EventSubscriptionEntity> eventSubscriptions =
            eventSubscriptionEntityManager.findEventSubscriptionsByNameAndExecution(
                MessageEventHandler.EVENT_HANDLER_TYPE,
                messageName,
                executionId
            );

        if (eventSubscriptions.isEmpty()) {
            throw new ActivitiException(
                "Execution with id '" +
                executionId +
                "' does not have a subscription to a message event with name '" +
                messageName +
                "'"
            );
        }

        // there can be only one:
        EventSubscriptionEntity eventSubscriptionEntity = eventSubscriptions.get(0);
        eventSubscriptionEntityManager.eventReceived(eventSubscriptionEntity, payload, async);
    }
}
